diff --git a/Packages/Core/changes.txt b/Packages/Core/changes.txt
index 0ea1cbc54be..052add46e61 100644
--- a/Packages/Core/changes.txt
+++ b/Packages/Core/changes.txt
@@ -1,5 +1,6 @@
 02 February 2006 Andreas Fabri
 - BigInt.h: Instead of letting mpz_get_str(..) allocate memory we allocate/deallocate it ourselves
+- BigRat.h: Instead of letting mpq_get_str(..) allocate memory we allocate/deallocate it ourselves
 
 16 February 2005 Sylvain Pion
 - core.lib -> core++.lib for _MSC_VER  (CORE maintainers notified).